Rotary engine.



A. NEUMANN. ROTARY ENGINE. APPLICATION FILED MAY 2a. 1908.

Patented Oct. 12, 1909.

Z SHEETS-SHEBT l.

$04. wwafixy A, NEUMANN.

ROTARY ENGINE.

APPLICATION FILED MAY 23. 1908.

Eaqtanted Oct. 12, 1909.

2 SEEETS-SHBET Z.

JJJ? wwgh ARTHUR NEUMANN, OF ST. L OI T IS, MISSOU BEI-IRENS, F CLAYTON, MISSOURI.

FFXC

ASSIGNOR OF ONE-HALF TO DANIEL F.

ROTARY ENGINE.

assess.

1'0 all whom "it may concern:

Be it known that l, ARTHUR Nan-MANN, a citizen of the United States, and resident of St. Louis, Missouri, new and useful improvements in Rotary Engines, of which the following is a specification.

My invention relates to improvements in rotary engines, and has for its object to provide a rotary engine in which-the rotating cylinder is eccentrically mounted upon a hollow shaft, through which hollow shaft the escape of the exhaust steam is eli'ected.

'In the drawings-Figure 1 is a central vertical sectional view of a device embody ing my invention, taken along the line 2 -2 of Fig. 5. Fig. 2 is an enlarged detail sectional view of one of the inlet valves of my invention and its connections. 20 enlarged perspective view inlet valves. Fig. 4 is an enlarged perspective view of one of the guide-members employed in my invention. Fig. 5 is a top plan view of a device embodying my invention, showing a portion broken away and in section. Fi 6 is an enlarged perspective View the dogs employed in my invention, and which is mounted upon the guidemember illustrated in Fig. 4. Fi 7 is an employed in my invention, which is actuated by the dog illustratedin Fig. 6. y

s shown in the drawings, '1 provide an outer cylinder 8mounted upon the base sup ports 9. Mounted axially within the cylinder 8 I provide the tubular shaft 10 upon which the rotating cylinder 11 is eccentric ally mounted; the tubular shaft 10 being rovided with perforations 12 and being hired through the inner cylinder heads 13 the outer cylinder heads 14. The rotating cylinder is provided with alongitudinal slot 15 throughout the lengthof its outer face, wherein the follower 16 is mounted, and is kept in contact with the, inner face of the cylinder 8 by means of the coil-spring 17. At a point beyond the foland ournaled in lower 16, with reference to the line of travel 48 of the rotatin cylinder 11, indicated by the arrow A. in i 1, the cylinder 11 .is provided with per iorations 18.

In each well of the cylinder 8and midway of its height, I provide a slide valve 19 whose outer end is provided with the blocks 5 20 having a vertical slot 21 through which n enlar 'ed )ers ective view of one o? the (l0 s' Specification of Letters Patent. Application filed May 23, 1908.

have invented certain;

' while the Fig. 3 is an of one of the! I I l l valves I inward stroke of" the valves 40-40.

the guide-members 35 Patented on. 12, 1909. Serial No. 434,597.

the dog 22 is mounted. The blocks 20m; carried by upright members 23 and 2%; the upright members 23 are fixedly secured at the outer ends of the cross-bars 25-;25,

uprights 24 are loosely mounted 60 on the ends 26 of the cross-bars 2525, and are to keep the valves 19 in close contact with the cylinder by means 'of the coilsprings QR-27, whose outer ends are secured upon the cross-bars 25-25 by means of nuts 28-28 screw-threaded on said crossbars 25-25.

The dogs 22-22 are constructed as illustrated in the perspective view in Fig. (3 and in section in Fig. .2; each of said dogs being provided with the slot 29, the bottom of said slot being formed with an inclined face 30 leading to thehorizontal bearing surface 3L A. block 32 is slidably mounted in the slot 29 and the coil-spring 33 is mounted within the wall 29 and above the block-32. Above the slide valve 19 on one side of the cylinder 8, and below the slide valve 19 on the o posite side of the cylinder 8, I pins 34-434 upon which the guide-members 3' 35-35 are secured by means of screws 36, being of the form aving a projecting illustrated in Fig. 4; 7 shoulder 38 and flattened end 37, an inclined an inner thicker ortion 39. v 3 The function of the dogs 2222 and their connections is to control the o eration of the inlet valves -10-40, which val ires 4040 are slidably mounted in housings 41-41, municating with the recesses 4H2 with which the outer cylinder 8 is provided, inlet openings 43--43 extending from the recesses 42-42 to the interior of the cylinder 8. The dO-etOare constructed as illustrated in Fig. 3, havln perforations 44 extending through them, t irough which steam is admitted from the opening 45 with which the pipe 46 is connected, the admission of steam from the pipe 46 being effected upon the The valves 40-40 are/mounted upon ins 4747 which are slidably mounted in t e housings and are provided with the dogs 49, coilsprings 50 being interposed between the inner faces of the dogs 49 and the outer faces of the housings 48. I

The mode of operation of the machine thus described is as follows: Steam being admitted through either of the ports 43, the inner cylinder 11 is driven in the direction face of the slide valve 9, and t e face of the follower 16. As the cylinder 11 travels sufticiently to carry the follower 16 and the guides 19 to the opposite guide 19, the poi:

43 last passed by the follower 16 wil closed by reason of'the inlet valve 40 bein carried to a point which will close the mout 1 of the inlet openin 45; and the follower 16 having been carrie beyond the valve 19 to which it has thus; been conveyed, the 'port 43 which it passed will be 0 ened by the corresponding movement of t e valve 40 whereby said port 43 is controlled. The exhaust steam, accumulated in front of the follower 1 6 with reference to thc'line of travel of the cylinder 11, will be discharged inwardly, to the interior of the cylinder 11 through the openings 18, and thence through the opening 12 into the interior of the tubular shaft 10, finding its final exit through the ends of the said tubular shaft.

Havin thus fully described my invention,

what I c aim new and desire to have sccured to me by the grant of Letters Patent,1s: v

1. In a'rotary engine, a stationary outer cylinder; a tubular shaft axially journaled the stationary cylinder; a follower inter-- posed between the outer face of the revoluble cylinder and the nner face of the stationary cylinder the revoluble cylinder and the tubular shaft being provided, with perforations for the emission of the exhaust steam from the interior of the stationary cylinder; slide valves mounted throu h the stationary cylinder and. contacting wlth the outer faceof the revoluble cylinder; valves mounted in the wall of the stationary cylinder, and means whereby said valves are successively operated to control the admission of steam to the interior of the stationary cylinder, substantially as described;

2. In arotary engine, the combination of a stationary cylinder provided with steam inlet openings; a tubular shaft journaled axially therein; a revoluble cylinder mounted eccentrically'upon said tubular shaft; a longitudinal follower mounted in the outer face of the revoluble cylinder and contacting with the inner face of the stationary cylinder; slide valves. longitudinally mounted through the outer cylinder; steam inlet valves whereby the steam inlet openings in the stationary cylinder are controlled, and means connecting said sliding valves and said steam inlet valves whereby said steam inlet valves are successively operated; the revoluble cylinder and the tubular shaft being perforated to provide for the escape of the exhaust steam, substantially as described.

In testimony whereof, I havesigned my name to this specification, in presence of two subscribing witnesses.

ARTHUR NEUM ANN.

Witnesses: I

ALFRED A. EIGKS, V ALTER C. STEIN. 

